/*
 * @Author: zhaiyujia
 * @Date: 2022-11-16 00:43:31
 * @LastEditors: zhaiyujia
 * @LastEditTime: 2022-11-16 03:27:45
 * @Description: file content
 */

#include "Arduino.h"

#define LED D55

void setup()
{
    pinMode(LED, OUTPUT);
}
void loop()
{
    digitalWrite(LED, !digitalRead(LED));
    delay(500);
}